Remove explicit Twine instantiation if possible.

llvm-svn: 250055
diff --git a/lld/ELF/LinkerScript.cpp b/lld/ELF/LinkerScript.cpp
index 933b6be..f255da3 100644
--- a/lld/ELF/LinkerScript.cpp
+++ b/lld/ELF/LinkerScript.cpp
@@ -192,7 +192,7 @@
 void LinkerScript::readInclude() {
   StringRef Tok = next();
   auto MBOrErr = MemoryBuffer::getFile(Tok);
-  error(MBOrErr, Twine("cannot open ") + Tok);
+  error(MBOrErr, "cannot open " + Tok);
   std::unique_ptr<MemoryBuffer> &MB = *MBOrErr;
   StringRef S = Saver.save(MB->getMemBufferRef().getBuffer());
   std::vector<StringRef> V = tokenize(S);